2. Solving Inequalities Using Addition or Subtraction
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What can you do to isolate a variable in an inequality?
Solution Set: c<1 37
Graph:
The above tells us that all values less than 1 37 will satisfy the inequality. Below we demonstrate the inequality by graphing the solution set on a number line. Notice that c cannot equal 1 37, which we show with an open circle on the number line.
We can check our solution by substituting a few values into the given inequality. The value satisfies the inequality if the inequality remains true after substituting and simplifying.
c | c-4/7<6/7 | Evaluate |
---|---|---|
1 | 1-4/7<6/7 | 3/7 < 6/7 |
13/7 | 13/7-4/7<6/7 | 6/7 ≮ 6/7 |
2 | 2-4/7<6/7 | 10/7 ≮ 6/7 |
We can conclude that, as long as c is less than 1 37, the inequality is satisfied.